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Characterization of Tantalum Oxide Films Prepared by Sol-Gel Process for electrochemical devices

Publication Type

Conference Paper

Authors

Özer, Nilgün, Yongxiang He, Carl M Lampert

Abstract

Tantalum oxide films were prepared by sol-gel process using tantalum ethoxide Ta(OC2H5)5. The dependence of deposition conditions (i.e. composition of polymeric solutions and spinning rate) on ionic conductivities for tantalum oxide films were studied. The best results achieved for films fabricated by the spin coating technique were from clear polymeric solutions. These films had low packing density ρ=3.2 g/cm3 and good proton conductivity (about 10-6 Ω-1 cm-1). X-ray photoelectron spectroscopy (XPS) was used for studying the compositions of the tantalum oxide films. We report on the use of tantalum oxide films as ion conductors in devices consisting of WO3/Ta2O5/H+ ion storage polymer structure. We found tantalum oxide to have very good properties for proton device applications.

Year of Publication

1994

Organization

Building Technologies Department, Building Technology and Urban Systems Division, Windows and Envelope Materials

Research Areas

Advanced Coatings, Building Façade Solutions, Windows and Daylighting, W and D: Dynamic Glazings and Advanced Coatings, BTUS Windows and Daylighting

Related Files

PDF (565.37 KB) (link is external)

        

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